. >> the gun lobby and its allies willfully lied about the bill. >> reporter: furious, president obama said the bill did not harm gun rights. >> this legislation met that test. and too many senators failed theirs. >> reporter: more anger erupted when a woman shouted at senators, shame on you. most republicans and four democrats from states with high gun ownership voted against expanding background checks. >> criminals do not submit to background checks now. they will not submit to expanded background checks. >> the way to stop violent crime is to stop violent criminals. >> reporter: the politics was about more than gun rights. later today, a bipartisan group of senators will roll out immigration reform. democrat senator joe manchin who fought hard to get enough votes on background checks found that with two politically hard votes, some senators chose immigration over guns. >> if you're looking at it and trying to evaluate it, they're saying maybe immigration and maybe guns on top of that might be too much for me to go home and explain. >> reporter: and many of those senators who voted